Index: src/Screen.cc
===================================================================
--- src/Screen.cc	(revision 4258)
+++ src/Screen.cc	(working copy)
@@ -165,6 +165,7 @@
     image_dither(rm, false, scrname+".imageDither", altscrname+".ImageDither"),
     opaque_move(rm, false, scrname + ".opaqueMove", altscrname+".OpaqueMove"),
     full_max(rm, true, scrname+".fullMaximization", altscrname+".FullMaximization"),
+    maximize_geometry(rm, "", scrname+".maximizeGeometry", altscrname+".MaximizeGeometry"),
     sloppy_window_grouping(rm, true, 
                            scrname+".sloppywindowgrouping", altscrname+".SloppyWindowGrouping"),
     workspace_warping(rm, true, scrname+".workspacewarping", altscrname+".WorkspaceWarping"),
Index: src/Window.cc
===================================================================
--- src/Window.cc	(revision 4258)
+++ src/Window.cc	(working copy)
@@ -1641,6 +1641,10 @@
 
     int orig_max = maximized;
 
+    int geom_x, geom_y = 0;
+    unsigned int geom_w, geom_h = 0;
+    int mask = XParseGeometry(screen().maximizeGeometry().c_str(), &geom_x, &geom_y, &geom_w, &geom_h);
+
     // These evaluate whether we need to TOGGLE the value for that field
     // Why? If maximize is only set to zero outside this,
     // and we only EVER toggle them, then:
@@ -1679,6 +1683,8 @@
             m_old_height = new_h;
             new_y = screen().maxTop(head);
             new_h = screen().maxBottom(head) - new_y - 2*frame().window().borderWidth();
+            new_y = (mask & YValue) ? ((mask & YNegative) ? new_y + geom_y : geom_y) : new_y;
+            new_h = (mask & HeightValue && geom_h > 0) ? geom_h : new_h;
         }
         maximized ^= MAX_VERT;
     }
@@ -1698,6 +1704,8 @@
             m_old_width = new_w;
             new_x = screen().maxLeft(head);
             new_w = screen().maxRight(head) - new_x - 2*frame().window().borderWidth();
+            new_x = (mask & XValue) ? ((mask & XNegative) ? new_x + geom_x : geom_x) : new_x;
+            new_w = (mask & WidthValue && geom_w > 0) ? geom_w : new_w;
         }
         maximized ^= MAX_HORZ;
     }
Index: src/Screen.hh
===================================================================
--- src/Screen.hh	(revision 4258)
+++ src/Screen.hh	(working copy)
@@ -117,6 +117,7 @@
     bool clickRaises() const { return *resource.click_raises; }
     bool doOpaqueMove() const { return *resource.opaque_move; }
     bool doFullMax() const { return *resource.full_max; }
+    std::string maximizeGeometry() const { return *resource.maximize_geometry; }
     bool doShowWindowPos() const { return *resource.show_window_pos; }
     bool antialias() const { return *resource.antialias; }
     bool decorateTransient() const { return *resource.decorate_transient; }
@@ -433,6 +434,7 @@
             antialias, auto_raise, click_raises, decorate_transient;
         FbTk::Resource<std::string> rootcommand;		
         FbTk::Resource<ResizeModel> resize_model;
+        FbTk::Resource<std::string> maximize_geometry;
         FbTk::Resource<std::string> windowmenufile;
         FbTk::Resource<FollowModel> follow_model;
         bool ordered_dither;